public class arr3 {
    public static void main(String[] args) {
        int[] arr = {1,2,3,4,5,6,7,8,9,10};
        for (int i = 0; i < arr.length; i++) {
            if (arr[i] % 2 == 0){
                arr[i] /= 2;
                continue;
            }
            arr[i] *= 2;
        }
        for (int i = 0; i < arr.length; i++) {
            System.out.println(arr[i]);
        }
    }
}
